The slain boy was identified as Tommy McNeal, 14, of the 7200 block of South Rhodes Avenue, according to the Cook County medical examiner's office.

Police were called to the 6900 block of South Vernon Avenue about 1:35 p.m., and found the boy, lying on the sidewalk unresponsive and suffering from a gunshot wound the back, said Chicago Police News Affairs Officer Daniel O'Brien. citing preliminary information.

A witness told police that after shots were fired, one man or boy dressed in a black hoodie ran from the scene.

Central Area detectives were investigating.

A spokeswoman for the Chicago Public Schools said she could not provide information on McNeal's enrollment status due to CPS privacy restrictions.

In a separate attack in the Portage Park neighborhood, a man or boy was shot in the foot in the 3700 block of North Mobile Avenue about 1:52 p.m., O'Brien said.

A Jefferson Park District police lieutenant citing preliminary information said the victim, 18, was riding a bicycle when he heard a gunshot and felt pain in his left foot. He stopped riding and took off his shoe and realized he'd been shot in the foot, the lieutenant said.

He was taken to Our Lady of the Resurrection Medical Center where he was listed in good condition Friday afternoon, the lieutenant said.